Optimal postoperative pain management after VATS lung resection by thoracic epidural analgesia, continuous paravertebral block or single-shot intercostal nerve block (OPtriAL): study protocol of a three-arm multicentre randomised controlled trial.
L N SpaansM G W DijkgraafP MeijerJ MourisseR A BouwmanA F T M VerhagenFrank J C van den Broeknull nullPublished in: BMC surgery (2022)
version 3 (date 06-05-2022), ethical approval through an amendment (see ethical proof in the Study protocol proof).